A. unexplained B. get the hang of C. on the increase D. dress A. definitely B. hasn't C. turbulent D. twitter A. church B. trousers C. haven't D. energetic A. carving B. T-shirt C. asleep D. South Africa A. separate from B. arrive C. I'd like D. bus A. challenge B. life C. flexible D. by A. by the way B. about C. either D. telly A. skeleton B. have got C. junk food D. keep to A. line B. certificate C. summer D. bicycle A. lighthouse B. animal C. disorder D. operation